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If the patient develops pulmonary edema during initiation with FLOLAN, discontinue therapy and do not readminister. Consider the possibility of associated pulmonary veno-occlusive disease in such patients.
Rebound Pulmonary Hypertension Following Abrupt Withdrawal
Avoid abrupt withdrawal (including interruptions in drug delivery) or sudden large reductions in dosage of FLOLAN because symptoms associated with rebound pulmonary hypertension (e.g., dyspnea, dizziness, and asthenia) may occur. In clinical trials, one Class III patient's death was judged attributable to the interruption of FLOLAN.
FLOLAN is a potent pulmonary and systemic vasodilator and can cause hypotension and other reactions such as flushing, nausea, vomiting, dizziness, and headache. Monitor blood pressure and symptoms regularly during initiation and after dose change [see DOSAGE AND ADMINISTRATION].
Increased Risk For Bleeding
FLOLAN is a potent inhibitor of platelet aggregation. Therefore, expect an increased risk for hemorrhagic complications, particularly for patients with other risk factors for bleeding [see CLINICAL PHARMACOLOGY].
Patient Counseling Information
Advise the patient to read the FDA-approved patient labeling (PATIENT INFORMATION).
- FLOLAN must be reconstituted only with STERILE DILUENT for FLOLAN or pH 12 STERILE DILUENT for FLOLAN.
- Reconstituted solution prepared with STERILE DILUENT for FLOLAN must be used with a cold pouch if not administered within 8 hours.
- Reconstituted solutions prepared with pH 12 STERILE DILUENT for FLOLAN do NOT require use with a cold pouch.
- FLOLAN is infused continuously through a permanent indwelling central venous catheter via a small, portable infusion pump. Thus, therapy with FLOLAN requires commitment by the patient to drug reconstitution, drug administration, and care of the permanent central venous catheter. Patients must adhere to sterile technique in preparing the drug and in the care of the catheter, and even brief interruptions in the delivery of FLOLAN may result in rapid symptomatic deterioration. A patient's decision to receive FLOLAN should be based upon the understanding that there is a high likelihood that therapy with FLOLAN will be needed for prolonged periods, possibly years. Consider the patient's ability to accept and care for a permanent intravenous catheter and infusion pump.
- To adjust infusion rates of FLOLAN only under the direction of a physician.
- To avoid interruptions in drug delivery, the patient should have access to a backup infusion pump and intravenous infusion sets.
- To contact their healthcare providers if any unusual bruising or bleeding develops.
Carcinogenesis, Mutagenesis, Impairment Of Fertility
Long-term studies in animals have not been performed to evaluate carcinogenic potential. A micronucleus test in rats revealed no evidence of mutagenicity. The Ames test and DNA elution tests were also negative, although the instability of epoprostenol makes the significance of these tests uncertain. Fertility was not impaired in rats given FLOLAN by subcutaneous injection at doses up to 100 mcg/kg/day (600 mcg/m²/day, 2.5 times the recommended human dose [4.6 ng/kg/min or 245.1 mcg/m²/day, IV] based on body surface area).
Use In Specific Populations
Pregnancy Category B
There are no adequate and well-controlled studies in pregnant women. Because animal reproduction studies are not always predictive of human response, FLOLAN should be used during pregnancy only if clearly needed.
Reproductive studies have been performed in pregnant rats and rabbits at doses up to 100 mcg/kg/day (600 mcg/m²/day in rats, 2.5 times the recommended human dose, and 1,180 mcg/m²/day in rabbits, 4.8 times the recommended human dose based on body surface area) and have revealed no evidence of impaired fertility or harm to the fetus due to FLOLAN.
It is not known whether this drug is excreted in human milk. Because many drugs are excreted in human milk and because of the potential for serious adverse reactions in nursing infants from FLOLAN, a decision should be made whether to discontinue nursing or to discontinue the drug, taking into account the importance of the drug to the mother.
Safety and effectiveness in pediatric patients have not been established.
Clinical trials of FLOLAN in pulmonary hypertension did not include sufficient numbers of subjects aged 65 and over to determine whether they respond differently from younger subjects. Other reported clinical experience has not identified differences in responses between the elderly and younger patients. In general, dose selection for an elderly patient should be cautious, usually starting at the low end of the dosing range, reflecting the greater frequency of decreased hepatic, renal, or cardiac function and of concomitant disease or other drug therapy.This monograph has been modified to include the generic and brand name in many instances.
Last reviewed on RxList: 5/6/2015
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